Welcome to your Eduqas Component 1 During oxidative phosphorylation, hydrogen ions join with oxygen to form Water Hydrogen peroxide ATP Amino acid ATP molecules are best associated with the Storage of energy "lock and key" theory Enzyme-substrate complex pH scale Aerobic respiration takes place at which site of mitochondria? matrix outer membrane inner cristae vescicles The light independant reaction of photosynthesis uses _____________ from the light dependant reaction to form a ___________. Reduced NADP, simple sugar Simple sugar, reduced NADP Carbon dioxide, simple sugar Oxygen, simple sugar Select the correct statement regarding light dependant reaction of photosynthesis. This takes place only in the presence of suitable pigments. Splitting of water by photolysis gives out oxygen and an electron. Oxygen is given out in this reaction as a byproduct. Photophosphorylation of ADP to ATP is always cyclic. Choose the correct order of words to fill in the blanks. In the light independent reaction of photosynthesis, the production of ATP involves ________ transfer associated with the transfer of electrons down the electron transfer chain and passage of _______ across _________ membranes and is catalysed by ATP ________ embedded in these membranes (chemiosomotic theory). Electron,protons,chloroplast,synthase Protons,electron,chloroplast,synthase Electron,chloroplast,protons,synthase Protons,electron,synthase,chloroplast Answer the following 2 questions with regard to light independant reaction of photosynthesis. Which molecule is formed when Carbon dioxide reacts with RuBP? Two molecules of glycerate 3-phosphate (GP) One molecule of glycerate 3-phosphate (GP) Two molecules of triose phosphate One molecule of triose phosphate Which enzyme catalyzes the light-independent reaction? Rubisco Phosphokinase Reductase Hydrolase Which of the following stack together to form the granum? thylakoids chloroplasts stroma lamella Oxygen liberated in photosynthesis comes from _____ H2O CO2 C6H12O6 H2O2 Select the incorrect statement about photosynthesis PS I absorbs light at 680 nm Energy is utilised to convert ADP+ Pi to ATP A Chlorophyll molecule absorbs a photon of light The excess hydrogen ions are made available by photolysis of water The Chemiosmotic theory suggests Photolysis of water molecule takes place on the inner side of the membrane Photolysis of water molecule takes place on the outer side of the membrane NADP oxidase enzyme is present on stroma side of membrane ATP molecule removes a proton from stroma Which reaction is catalysed by RuBisCo? CO2 + RuBP = GP H2O + RuBP = GP CO2 + RuBP = RuBis H2O + RuBP = RuBis Overall Reaction of Calvin (C3) Cycle involves 6 turns to produce 1 glucose molecule 1 turn to produce 6 glucose molecules 1 turn to produce 1 glucose molecule 3 turns to produce 1 glucose molecule Anaerobic respiration takes place in the Cytoplasm of cells Nasal passages Cell membranes Mitochondria What happens if respiration is aerobic? Pyruvate from glycolysis enters the mitochondrial matrix by active transport. Pyruvate can be converted to ethanol using reduced NAD. Pyruvate can be converted to lactate using reduced NAD. Pyruvate from glycolysis enters the ribosome by active transport. Select the incorrect sentence about respiration. Glucose breakdown can be divided into 3 stages. Many cells can use only glucose as their respiratory substrate. Respiration is a process in which organic molecules act as a fuel. Glycolysis is the first stage of anaerobic and aerobic respiration. All of the processes by which cells produce usable energy are known collectively as Respiration Dehydration synthesis Active transport Oxidative phosphorylation As the result of anaerobic respiration, glucose is converted into Pyruvic acid Amino acid Fatty acid Hydrochloric acid Where does glycolysis take place? Cytoplasm of a cell Ribosome of a cell Nucleolus of a cell Golgibodies of a cell Aerobic respiration takes place in the Mitochondria Cell membranes Cytoplasm of cells Cell sap Select the incorrect statement about the Krebs cycle. It is an open pathway of enzyme controlled reactions. Acetyl coenzyme A combines with oxaloacetate to form citrate. Carbon dioxide is generated as a waste. Oxaloacetate is regenerated to combine with another acetyl coenzyme A. Conversion of pyruvate to Acetyl CoA is called Link reaction Oxidative phosphorylation Kreb's cycle Electro-reduction What is the purpose of glycolysis? Breakdown of glucose Consumption of ATP Production of O2 Production of FADH2 Which of the following factors is not affected by anaerobic respiration? RHR PCSA Neural Drive Strength The one which is not an element of aseptic technique is Sterile microbes Good personal hygiene Sterile reagents Sterile work area An example of selective media for Gram-negative bacteria is MacConkey agar Hektoen enteric agar YM (yeast extract, malt extract agar) Eosin methylene blue The first phase of a bacterial growth curve is Lag phase Stationary phase exponential phase Log phase An opportunistic pathogen, being a common cause of skin infections is Staphylococcus Mycobacteriaceae Streptococcus ecoli Peptidoglycans are components of Bacterial cell wall Bacterial chromosome Viral DNA Fungal spores The component regularly transmitted between different bacterial species is Plasmids DNA RNA Ribosomes Time is Up!